Geodynamics and Active Tectonics of Fiordland, New Zealand: Workshop

新西兰峡湾的地球动力学和活动构造：研讨会

• 批准号: 0118939
• 负责人: Kevin Furlong
• 金额: $ 1.5万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0118939&HistoricalAwards=false
• 关键词: Geodynamics; Active; Tectonics; Fiordland; New

0118939FurlongThe accommodation of transpression along plate boundaries can be accomplished in many ways. Along the Australian - Pacific plate boundary within the South Island of New Zealand, there is a profound change in the style of transpressional tectonics between the crustal/lithospheric shortening and uplift of the Southern Alps segment of the plate boundary and the localized subduction-like behavior of the Fiordland segment. Why such a substantial change in plate boundary tectonics occurs over distances of only tens of kilometers without any significant change in plate kinematics is a fundamental issue of lithospheric geodynamics and most likely reflects the complex interplay of tectonic history, local lithospheric structure, and 3-D plate kinematics. Unraveling this complex set of processes requires truly interdisciplinary studies. In order to foster such interdisciplinary research and develop plans for future collaborative projects, we are holding a research workshop focusing on the geodynamics and active tectonics of the Fiordland plate boundary region. The workshop will occur in January 2002 (the New Zealand summer). The 'meeting' segment of the workshop is at the University of Otago in Dunedin, while the 'field' segment of the workshop (involving a subset of the meeting attendees) is based out of Te Anau, a small town on the eastern margin of Fiordland. The university setting provides suitable facilities for scientific presentations (both oral and poster) and discussions, while Te Anau is an excellent base for sorties into Fiordland. In order to encourage focused discussions of our current understanding of the tectonics of the region, poster presentations and substantial discussion time are the main component of the meeting part of the workshop. To provide an overview of the interdisciplinary issues, there is one 'background' presentation for each half-day session of the meeting.

沿着沿着板块边界的平移挤压调节可以通过多种方式实现。 沿着新西兰南岛内的澳大利亚-太平洋板块边界，板块边界南阿尔卑斯山段的地壳/岩石圈缩短和隆起与峡湾段的局部俯冲行为之间的压扭构造样式发生了深刻的变化。为什么板块边界构造的这种实质性变化发生在几十公里的距离上，而板块运动学没有任何显著的变化，这是岩石圈地球动力学的一个基本问题，很可能反映了构造历史、局部岩石圈结构和三维板块运动学的复杂相互作用。 解开这一复杂的过程需要真正的跨学科研究。 为了促进这种跨学科的研究和制定未来合作项目的计划，我们正在举办一个研究讲习班，重点是峡湾板块边界地区的地球动力学和活动构造。 讲习班将于2002年1月（新西兰夏季）举行。 研讨会的“会议”部分在达尼丁的奥塔哥大学举行，而研讨会的“实地”部分（涉及一部分与会者）则在峡湾东部边缘的一个小镇蒂阿瑙举行。大学环境为科学报告（口头和海报）和讨论提供了合适的设施，而蒂阿瑙是进入峡湾的绝佳基地。 为了鼓励重点讨论我们目前对该地区构造的理解，海报展示和大量的讨论时间是研讨会会议部分的主要组成部分。 为了概述跨学科问题，会议的每半天会议都会有一次“背景”介绍。